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Wednesday, 9 October 2013

PE4BAS/P WSPR analysis and visiting PD9R

PD9R setup

24 years ago to be exact at 10 Sept. 1989 I made a SSB QSO to Schiermonnikoog Island and spoke with PE6 Rob. Now, PE6 is not a official call but just a "skipname" which we used to have on CB. I spoke with Rob several times and also with a lot of other stations from the island. It was long before facebook and twitter that de CB "social media" was very populair. I never met Rob in real life but did contact him on facebook. Actually when I was on Schiermonnikoog last weekend this was the chance to finally meet him to have an eyeball QSO. Rob, who is currently PD9R, is the only licensed ham radio operator on the island these days. The problem only is that he hasn't got a transmitter yet, only an old Kenwood R1000 is operational. Of course he does receive some WSPR, but it is difficult as the old Kenwood drifts about 4-5 Hz every 2 minutes. Anyway, we met sunday afternoon and we had a nice cup of coffee when discussing hamradio matters. I really hope Rob will be on air this year. I gave him a tip to make a multiband vertical just like the one I use. As he is the only operator from the island he should be ready for some gigantic pile-ups ;-)

Well, it took some time but I finally sorted out the WSPR results. I didn't look at it much on the island, only noticed I was received in Alaska. But now, it seems I was also received in Australia. Not bad with 5W into a MP-1 on the balcony. I noticed that most signals went to and came from the USA, not surprised about that because there was only water between the 2 countries. I was about a km from the northsea. I was heard in 22 DXCC finally. Bert PA1B made me a lowest possible power analysis report. What you can see in this report is the lowest possible power I could have been using. Nice to see that I could reach Alaska with only 200mW and Australia with only 500mW. In a perfect world it would be no problem to have worldwide contacts with this setup.

Hallo Bas, I enjoyed to make the analysis. Thanks for publishing.Most of the time I remove the stations on "zero" kilometers from the analysis, so you will not find PD9R. Sri Rob.The Lowest possible power is the calculated power to be received with a SNR of -29 dB. This -29 dB is a solid copy in WSPR.To be received in CW you should use 13 dB more power. (20 x)